Cable sling, jam and trip hook



'Nov. 3, 1925- E. A. HAYNES CABLE SLING, JAM AND TRIP HOOK Flled Dec 31924 gwmm Edwarl.4. [fag new I @4401 $144M Patented N or. 3, 1925.

UNITED STATES EDWARD A. HAYNES, OF PORT HURON, MICHIGAN.

CABLE SLING, JAM AND TRIP Application filed December 30, 1924. SerialNot 758,854.

To all whom it may concern.

Be it known that I, EDVARD A. IIAYNES, a citizen of the United States,residing at Port Huron, in the county of Saint lair and State ofMichigan, have invented certain new and useful Improvements in ableSlings, Jam and Trip Hooks; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same. v

This invention relates particularly to im provements in cable slings,jam and trip cable devices and means for clai'nping a load or bundle,composed, for instance, of a number of logs of wood, and means forreleasing the clamp or clevis when desired.

An object of this invention is to provide means for maintaining thecable sling under tension around the bundle so that when the cable slingincluding the bundle of logs, in this instance, is released or droppedinto the hold of a boat or otherwise, the bundle remains in lirm,compact condition until it is desired to unload at a destination, whenthe bundle or load is lifted by means of a clerrick or otherwise, andthe sling released from tension whereby the contents of the load orbundle will drop to the ground or, tor instance, into the water.

In the drawings:

Fig. 1 is a side elevation view of the cable sling including the clevisdevice, in operative relation.

Fig. 2 is a side elevation view showing certain parts in section, of theclevis, including the jam, trip device, and main body member.

Fig. 3 is a plan sectional view taken through 33 o't Fig. 2.

Fig. 4- is an end sectional view taken through 'l-l: of Fig. 2.

In these views like reference numerals designate similar parts.

The numeral 1 represents the cable sling having a loop 2 at one endadapted to be readily attached to a derrick line or otherwise. The cablesling extends in slidable rela tion through an opening 5 in the jam portion 6, the said j am portion 6 being pivoted at 7 to a trip element 8having an eye opening at 9 to carr Y the snap hook 10 of a trip Y 'line11, the said trip element"8 also having thermore formed with a hookedsection at one end to receive the jam member 6 in locked relat on, whilean inclined notch 16 is formed in the main body portion 14: to re.-

ceive a spindle 17 carrying aguide roll 18, the said spindle 17 andguide roll 18 being adapted to slide in the notch or bearing 16 toadjusttor difle'rent diameters of the cable sling 1. An opening 20 islocated in one permanently fastened end 21 of the cable sling 1. Y

In operation it the cable sling 1 in a loose condition or other wise,around the load or bundle 19 to be handled, pull up on the loop 2 bymeans ot a derrick or other lifting device, the lifting action or straincausing the sling around the bundle-to tighten until the bundle is in aclose, compact mass; the clevis including the jam 6, trip device 8, andmain body member 14 being in position as clearly shown in Fig. 1, actsto firmly clamp the bundle so that when released at the loop 2 from thelifting apparatus and dropped into the hold of aboat/or otherwise, theload or bundle retains its compactness, the cable sling, obviously,being left around the bundle. When the destination is reached or when itis required to release the components of the load, the bundle is againattached. to a lifting device by the loop 2, raised to the desiredheight, when the trip line .11 is pulled, thereby releasing the tripelement 8 from locked relation with the main body member 14 of theclevis, causing the load to fall apart, as in the common instance oflogs being dropped into the water after being unloaded from a boat. Onthe release of the cable sling the main body portion 14; of the cleviswill hang from the loop 21 of the cable sling, While the jam 6 will beheld in free sliding relation on the cable through the opening 5 in thejam, the said jam, trip element and trip line swinging together. Thetrip line, if desired, may be detached from the clevis by means of asnap hook 10.

Obviously, the main body portion 14 of the clevis is released at one end15 from the cable sling": through the slot 22 whenever the is merelyrequired to place cnd of the main body member to receive the i trip line11 is pulled and the jam allowed to fall out of hooked relation with themain body member at 15.

lVhat I claim is:

1. A clevis adapted for a jam and trip cable hook, comprising a jammember, a trip device, and a main body member, the jam.

member being adapted to be held firmly in hooked relation with one endof the main body member. 2. A clevis adapted for a jam and trip cablehook, con'iprising a jam member, a trip device, and. a main body member,the jam member being adapted to be held firmly in hooked relation withone end of the main body. member by means 01 a trip device.

' 3. A clevis adapted for a jam and trip cable hook, comprising a jammember, a cable passing iireely through the jam meniher, a. trip device,and a main body member,

the jam member. being adapted to be held firmly in hookedrelation withone end of the main body member by means of the trip device, and thesaid cable.

4. A 'clevis comprising a jam member, a trip device,-and a main bodyn'iem'ber, the jam member at one end being adapted to engage in hookedrelation with one end of. the, main body member, the trip device beingadapted to pivot on the opposite end oi? the jam member when it isdesired to release the jam and trip from locked relation with the mainbody member.

5. The combination with a cable sling, of a clevis, comprising a ammember, a trip device including a trip line, and a main body member, thejam member at one end having an opening adapted to receive a freesliding portion of the cable sling, While one end of said. cable slingis fastened to one end of the main body portion, the said trip linebeing fastened tot-he trip device, is adapted, when pulled, to releasethe j am and trip device from the main body member, one end of the cablesling remaining attached to the body member, While the jam and tripdevice will swing free from the body member, the jam sliding freely onthe cable sling.

6. A clevis comprising a jam membena trip device, and a main bodymember, the said jam member being adapted to receive cable freelyslidable therein the cable be ing guided by a guide roll carried on aspindlerotating in bearings comprising elongated slots in the main bodyportions, the said slots allowing for adjustment to different diametersof cable.

In testimony whereof I affix my signature.

EDWARD A. HAYNES.

